Developer Spotlight: Cone – Discover

Developer Spotlight: Cone – Discover

  • Apple
  • July 1, 2021
  • No Comment
  • 83
  • 5 minutes read


When he was a student in India, Kushagra Agarwal’s favorite subject had always been art, until he began to have difficulty identifying the color brown. In sixth grade, dark green, red, and brown became almost indistinguishable to him.

As he grew up, Agarwal was disappointed with the lack of tools for people with color blindness, so he set to work: coding with Swift, he created the app. Withwhich uses the camera of the iPhone or iPad, and that of Apple AVFoundation frame: to identify colors in photos or in any environment.

Agarwal designed * Cone * to serve as a guide for those with color blindness.

Agarwal designed * Cone * to serve as a guide for those with color blindness.

The App Store talked to Agarwal about color temperatures, the world of design, and picking ripe mangoes.

What inspired you to create With?There were other options for colorblind people, but they never worked reliably for me. Some would only read limited nuances. Some would only read the color of the exact pixel you were targeting, which would lead to inaccuracies. Individual pixels never tell the whole story – the colors you see, especially in high-resolution photos, are an average of all the colors in a small area.

When did you realize you were into something?I have heard that it is possible to know if a mango is ripe for its color. I could never do that because I find it hard to differentiate between yellow-orange and green. So one day I made the app look at a few mangoes in the kitchen and found that some were green! In my eyes, they were different shades of the same color, though With he told me the real story. I still use it With to identify ripe mangoes!

What was the early response to your application?Initially, people, mostly from the Reddit r / colorblind community, were skeptical about of with accuracy, mainly due to two problems in existing applications: inaccurate color readings in different lighting conditions and the tendency of applications to read only one pixel value. I introduced a color temperature control as well With could read colors accurately in different lighting conditions. I had too With reads each color around a dot and shows the average result. People enjoyed this attention to detail.

How he did it With has it evolved since launch?Before With was released to the public, it was a simple color identification tool for personal use. Once I started polishing it for release, I discovered another use case that would help me as a designer: the ability to store and manage colors in a library. So over time, With evolved to be a utility for designers. It is now used by UI designers, interior designers, graphic designers, print designers, and more.

The app has become an invaluable tool for many people. What did it mean to you?Now I make fewer mistakes seeing the colors, so I can always wear matching clothes!


Learn more about Cone in the App Store

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